Question

2. In dogs, there is a hereditary type of deafness caused by a recessive gene. Two dogs who carry the

gene for deafness but have normal hearing are mated. What are the possible genotypes and phenotypes o
f their offspring and the percent chance for each?

Answer 1

the Punnet square is

D d

D DD Dd

d Dd dd

the chart is

DD deafness 25%

Dd maybe deaf 50%

dd not deaf 25%

I'm not 100% sure this is right, but I think it is, hope this helps